Connect any controller via
low-level header
The relay board is also equipped with an 8-pin
locking header as shown below. You can use this
header to connect any controller to the relay board
using custom wiring.
relay power = Relay power
relay GND = Relay ground
digital GND = Control ground
digital 1 = Control input relay 1
digital 2 = Control input relay 2
digital 3 = Control input relay 3
digital 4 = Control input relay 4
The relays require a 5V DC power source to operate,
this should be connected to the Relay power and
Relay ground terminals. To switch the relays use a
1.8V-5V DC control input signal connected to the
corresponding terminals.
For code examples and more info please visit
https://qec.company/products/eas-rel-4
